Puma and Adidas are set to end their 60-year feud with a football match.
Head office staff from the two German sportswear brands will meet on September 21, shake hands then play a game of football.
The companies were founded by brothers Adi and Rudolf Dassler in the 1940s, who worked together before falling out and founding the two separate companies in 1948.
It is thought they parted over political differences during World War II. The companies were then founded on either side of a river in Herzogenaurach, Germany.
Puma and Adidas will now hold their first joint activity in over 60 years as part of Peace One Day, which promotes ceasefire and an end to violence.
Adidas chief executive Herbert Hainer said: “We at Adidas are very proud to support Peace One Day together with Puma. We firmly believe that sport can bring the world together.
Puma chairman and chief executive Jochen Zeitz added: “Our unity, in support of Peace One Day, is a small step in a positive direction as well as an expression of the united power of sport in a world which we are all responsible for.”